I just thought I'd post a little help for those newbs who want to build a kingdom, or start building a little plex.
When you're building a kingdom, the first thing you need is a bit of food. A few mil will be enough. Next you want to put morale in. Personally I like 50%, but you can do 99.99% if you like. After this you want some armies. However, do NOT max out your armies, as this is a waste of gold. If you divide your kingmanship level by 100, that is the percent increase you will get on all your kingdom assets (bar tres) per run. So if you have 50 kingmanship you will get .5% increase per run. If you max out your armies and forts straight up, you will be wasting these potential free armies. A good method to use is to buy say 1b armies and 500m forts, then run it as much as possible (more than once an hour does nothing). Each hour you run them, the armies will increase. Once they are nearing maxed (or earlier if you're feeling daring :P) you can add some treasury in. Treasury is how you make gold off kingdoms. Go to
this link to find out how much you can make in 24 hours. After your armies max, you can settle an adjacent kingdom and transport some of them in and have them gaining assets in two kingdoms, and this is how you can grow..
Chop and change this method, as it's only a guide, to suit your needs.